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EP0873855A3 - Method and apparatus for manufacturing moulded articles in hard metal, ceramic, sintered metal or similar - Google Patents

Method and apparatus for manufacturing moulded articles in hard metal, ceramic, sintered metal or similar Download PDF

Info

Publication number
EP0873855A3
EP0873855A3 EP98103085A EP98103085A EP0873855A3 EP 0873855 A3 EP0873855 A3 EP 0873855A3 EP 98103085 A EP98103085 A EP 98103085A EP 98103085 A EP98103085 A EP 98103085A EP 0873855 A3 EP0873855 A3 EP 0873855A3
Authority
EP
European Patent Office
Prior art keywords
punch
displacement
force
ceramic
similar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98103085A
Other languages
German (de)
French (fr)
Other versions
EP0873855A2 (en
EP0873855B1 (en
Inventor
Jürgen Hinzpeter
Ingo Schmidt
Ulrich Gathmann
Jörg Reitberger
Klaus-Peter Preuss
Alexander Oldenburg
Joachim Greve
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fette GmbH
Original Assignee
Wilhelm Fette GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wilhelm Fette GmbH filed Critical Wilhelm Fette GmbH
Publication of EP0873855A2 publication Critical patent/EP0873855A2/en
Publication of EP0873855A3 publication Critical patent/EP0873855A3/en
Application granted granted Critical
Publication of EP0873855B1 publication Critical patent/EP0873855B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0094—Press load monitoring means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/03—Press-moulding apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/04—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with a fixed mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/22—Control arrangements for fluid-driven presses controlling the degree of pressure applied by the ram during the pressing stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Control Of Presses (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Ceramic Products (AREA)
  • Punching Or Piercing (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

The method involves a press die (12) being filled with a powder or granular material which is pressed by means of at least one punch (14, 16) against a counter-surface. At the same time the punch force and displacement are measured. Dependent on the geometry of the component and the material used, a target force-displacement diagram is obtained for a punch, and is stored. During the pressing process the measured punch force and displacement is compared in a computer with the target diagram. By means of at least one separately operatable punch section or a separate punch, the pressure on the material is either increased or decreased as soon as a deviation from the target diagram takes place. As a result, at the end of the pressing process all components will have the same density. The arrangement has at least one punch (16) with sections (18, 20) which have separate drives. It further includes displacement and force sensors, as well as a process computer.
EP98103085A 1997-04-24 1998-02-21 Method and apparatus for manufacturing moulded articles in hard metal, ceramic, sintered metal or similar Expired - Lifetime EP0873855B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19717217A DE19717217C2 (en) 1997-04-24 1997-04-24 Method and device for producing compacts from hard metal, ceramic, sintered metal or the like
DE19717217 1997-04-24

Publications (3)

Publication Number Publication Date
EP0873855A2 EP0873855A2 (en) 1998-10-28
EP0873855A3 true EP0873855A3 (en) 1999-01-13
EP0873855B1 EP0873855B1 (en) 2006-01-18

Family

ID=7827546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98103085A Expired - Lifetime EP0873855B1 (en) 1997-04-24 1998-02-21 Method and apparatus for manufacturing moulded articles in hard metal, ceramic, sintered metal or similar

Country Status (4)

Country Link
US (1) US6074584A (en)
EP (1) EP0873855B1 (en)
AT (1) ATE315997T1 (en)
DE (2) DE19717217C2 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19846210A1 (en) * 1998-10-07 2000-04-13 Dorst Masch & Anlagen Press for the production of moldings
DE19949868B4 (en) * 1999-10-15 2005-01-20 R & D Carbon Ltd. Process for producing carbon bodies
DE19955196A1 (en) * 1999-11-16 2001-05-23 Korsch Pressen Ag Method to maintain breaking resistance of e.g. washing powder tablets etc. with constant automatic adaptation of dosing resp. compacting rollers to compensate for charging variations
DE10010671C2 (en) * 2000-03-04 2002-03-14 Fette Wilhelm Gmbh Process for producing pressed parts by pressing metal powder and then sintering the compact
DE10135283C2 (en) * 2001-07-19 2003-09-18 Fette Wilhelm Gmbh Process for pressing powder material
DE10142773C1 (en) * 2001-08-31 2003-03-06 Fette Wilhelm Gmbh Hydraulic press for pressing metal powder
DE10142623C2 (en) * 2001-08-31 2003-11-06 Fette Wilhelm Gmbh Method and device for minimizing the spread of the maximum pressing forces in a powder press
DE10142772C2 (en) 2001-08-31 2003-09-25 Fette Wilhelm Gmbh Process for the production of pressed parts in a powder press
DE10151858A1 (en) * 2001-10-24 2003-05-08 Dorst Masch & Anlagen Method for setting or monitoring a press tool and press tool or press control device therefor
DE10254656B4 (en) 2002-11-22 2005-10-13 Dorst Technologies Gmbh & Co. Kg Press device for producing dimensionally stable compacts with central punch support
DE10256654B4 (en) * 2002-12-03 2009-04-09 Röltgen GmbH & Co. KG Tablet press
US7014453B2 (en) * 2002-12-17 2006-03-21 Lear Corporation Machine having sensors for controlling molding operation
DE10301224A1 (en) * 2003-01-15 2004-08-05 Maschinenfabrik Lauffer Gmbh & Co Kg Process for regulating the end position of a press for dimensionally accurate moldings
DE102004008322B4 (en) 2004-02-20 2008-11-27 Fette Gmbh powder Press
GB0702196D0 (en) * 2007-02-06 2007-03-14 3M Innovative Properties Co Device for producing a dental workpiece
EP1964664B1 (en) 2007-02-27 2013-11-20 Maschinenfabrik Lauffer GmbH & Co. KG Method for controlling a powder moulding press manufacturing moulded articles
CN101678627B (en) 2007-03-20 2013-05-29 株式会社钨钛合金 Compression molding method of throw-away tip
GB0719824D0 (en) * 2007-10-11 2007-11-21 3M Innovative Properties Co Dental blank and method of making a dental ceramic blank
EP2307191B1 (en) * 2008-07-02 2018-08-08 Basf Se Method for producing a geometric oxidic molded body
DE102009004620A1 (en) * 2009-01-15 2010-07-22 Gkn Sinter Metals Holding Gmbh Method for operating a pressing device for the production of compacts of constant height from pulverulent materials, control device for such a pressing device and pressing device
DE102009016716A1 (en) * 2009-04-09 2010-10-21 Gkn Sinter Metals Holding Gmbh magnetic coupling
IT1401473B1 (en) * 2010-07-15 2013-07-26 Rm Technology Engineering Di Maggioni Roberto COMPRESSION DEVICE OF DUST AND SIMILAR.
DE102012019312A1 (en) * 2012-10-01 2014-04-03 Dorst Technologies Gmbh & Co. Kg Method for controlling a ceramic and / or metal powder press or ceramic and / or metal powder press
DE102016107362B4 (en) * 2016-04-20 2020-01-23 Federal-Mogul Bremsbelag Gmbh Pressing at least one molding compound by means of several stamps
EP3403817B1 (en) * 2017-05-18 2024-04-03 Walter Ag Cutting plate and method for producing a green body of the cutting plate
CH716048B1 (en) * 2019-04-09 2024-02-15 Dietmar Kramer Dr Sc Techn Eth Phd Method and a measuring device for measuring utensils for presses.
DE102021206078A1 (en) 2021-06-15 2022-12-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Device and method for clamping panel-shaped components

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2031788A (en) * 1978-10-19 1980-04-30 Ptx Pentronix Apparatus and method for compacting prismatic or pyramidal articles from powder material
EP0403038A2 (en) * 1989-06-15 1990-12-19 MANNESMANN Aktiengesellschaft Method and apparatus for making dimensionally stable pressed articles
DE9102414U1 (en) * 1991-02-26 1991-05-16 Mannesmann AG, 4000 Düsseldorf Press with continuous pressing force recording
DE4209767C1 (en) * 1992-03-23 1993-05-06 Mannesmann Ag, 4000 Duesseldorf, De
US5288440A (en) * 1991-05-02 1994-02-22 Yoshizuka Seiki Co., Ltd. Method and apparatus for controlling powder molding press
US5476631A (en) * 1992-06-09 1995-12-19 Cincinnati Incorporated Method and apparatus for adaptive powder fill adjustment on powder metal compacting presses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520662C3 (en) * 1975-05-09 1983-11-03 Wilhelm Fette Gmbh, 2053 Schwarzenbek Device for monitoring the pressing forces of the punches of a tablet press
DE3823417A1 (en) * 1988-07-11 1990-01-18 Fette Wilhelm Gmbh METHOD AND DEVICE FOR MONITORING THE PRESSING FORCE OF THE STAMP OF A TABLET PRESS
FR2638118A1 (en) * 1988-10-20 1990-04-27 Adl Automation METHOD AND APPARATUS FOR COMPRESSION AND CONTROL OF COMPRESSION OF PULVERULENT AND PRESSED MATERIALS BY APPLYING

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2031788A (en) * 1978-10-19 1980-04-30 Ptx Pentronix Apparatus and method for compacting prismatic or pyramidal articles from powder material
EP0403038A2 (en) * 1989-06-15 1990-12-19 MANNESMANN Aktiengesellschaft Method and apparatus for making dimensionally stable pressed articles
DE9102414U1 (en) * 1991-02-26 1991-05-16 Mannesmann AG, 4000 Düsseldorf Press with continuous pressing force recording
US5288440A (en) * 1991-05-02 1994-02-22 Yoshizuka Seiki Co., Ltd. Method and apparatus for controlling powder molding press
DE4209767C1 (en) * 1992-03-23 1993-05-06 Mannesmann Ag, 4000 Duesseldorf, De
US5476631A (en) * 1992-06-09 1995-12-19 Cincinnati Incorporated Method and apparatus for adaptive powder fill adjustment on powder metal compacting presses

Also Published As

Publication number Publication date
DE59813346D1 (en) 2006-04-06
DE19717217C2 (en) 1999-12-02
DE19717217A1 (en) 1998-10-29
EP0873855A2 (en) 1998-10-28
US6074584A (en) 2000-06-13
ATE315997T1 (en) 2006-02-15
EP0873855B1 (en) 2006-01-18

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